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4fe159a8 AT |
1 | /* |
2 | Copyright (C) Andrew Tridgell 1996 | |
3 | Copyright (C) Paul Mackerras 1996 | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | /* compatability routines for older rsync protocol versions */ | |
21 | ||
22 | #include "rsync.h" | |
23 | ||
43a481dc AT |
24 | extern int csum_length; |
25 | ||
4fe159a8 AT |
26 | extern int preserve_links; |
27 | extern int preserve_perms; | |
28 | extern int preserve_devices; | |
29 | extern int preserve_uid; | |
30 | extern int preserve_gid; | |
31 | extern int preserve_times; | |
32 | extern int always_checksum; | |
33 | ||
34 | ||
35 | extern int remote_version; | |
36 | ||
37 | void (*send_file_entry)(struct file_struct *file,int f) = NULL; | |
38 | void (*receive_file_entry)(struct file_struct *file, | |
39 | unsigned char flags,int f) = NULL; | |
40 | ||
41 | ||
42 | void send_file_entry_v10(struct file_struct *file,int f) | |
43 | { | |
44 | unsigned char flags; | |
45 | static mode_t last_mode=0; | |
46 | static dev_t last_dev=0; | |
47 | static uid_t last_uid=0; | |
48 | static gid_t last_gid=0; | |
49 | static char lastdir[MAXPATHLEN]=""; | |
50 | char *p=NULL; | |
51 | ||
52 | if (f == -1) return; | |
53 | ||
54 | if (!file) { | |
55 | write_byte(f,0); | |
56 | return; | |
57 | } | |
58 | ||
59 | flags = FILE_VALID; | |
60 | ||
61 | if (file->mode == last_mode) flags |= SAME_MODE; | |
62 | if (file->dev == last_dev) flags |= SAME_DEV; | |
63 | if (file->uid == last_uid) flags |= SAME_UID; | |
64 | if (file->gid == last_gid) flags |= SAME_GID; | |
65 | ||
66 | if (strncmp(file->name,lastdir,strlen(lastdir)) == 0) { | |
67 | flags |= SAME_DIR; | |
68 | p = file->name + strlen(lastdir); | |
69 | } else { | |
70 | p = file->name; | |
71 | } | |
72 | ||
73 | write_byte(f,flags); | |
74 | if (flags & SAME_DIR) | |
75 | write_byte(f,strlen(p)); | |
76 | else | |
77 | write_int(f,strlen(p)); | |
78 | write_buf(f,p,strlen(p)); | |
79 | write_int(f,(int)file->modtime); | |
80 | write_int(f,(int)file->length); | |
81 | if (!(flags & SAME_MODE)) | |
82 | write_int(f,(int)file->mode); | |
83 | if (preserve_uid && !(flags & SAME_UID)) | |
84 | write_int(f,(int)file->uid); | |
85 | if (preserve_gid && !(flags & SAME_GID)) | |
86 | write_int(f,(int)file->gid); | |
87 | if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_DEV)) | |
88 | write_int(f,(int)file->dev); | |
89 | ||
90 | #if SUPPORT_LINKS | |
91 | if (preserve_links && S_ISLNK(file->mode)) { | |
92 | write_int(f,strlen(file->link)); | |
93 | write_buf(f,file->link,strlen(file->link)); | |
94 | } | |
95 | #endif | |
96 | ||
97 | if (always_checksum) { | |
43a481dc | 98 | write_buf(f,file->sum,csum_length); |
4fe159a8 AT |
99 | } |
100 | ||
101 | last_mode = file->mode; | |
102 | last_dev = file->dev; | |
103 | last_uid = file->uid; | |
104 | last_gid = file->gid; | |
105 | p = strrchr(file->name,'/'); | |
106 | if (p) { | |
107 | int l = (int)(p - file->name) + 1; | |
108 | strncpy(lastdir,file->name,l); | |
109 | lastdir[l] = 0; | |
110 | } else { | |
111 | strcpy(lastdir,""); | |
112 | } | |
113 | } | |
114 | ||
115 | ||
116 | ||
117 | void receive_file_entry_v10(struct file_struct *file, | |
118 | unsigned char flags,int f) | |
119 | { | |
120 | static mode_t last_mode=0; | |
121 | static dev_t last_dev=0; | |
122 | static uid_t last_uid=0; | |
123 | static gid_t last_gid=0; | |
124 | static char lastdir[MAXPATHLEN]=""; | |
125 | char *p=NULL; | |
126 | int l1,l2; | |
127 | ||
128 | if (flags & SAME_DIR) { | |
129 | l1 = read_byte(f); | |
130 | l2 = strlen(lastdir); | |
131 | } else { | |
132 | l1 = read_int(f); | |
133 | l2 = 0; | |
134 | } | |
135 | ||
136 | file->name = (char *)malloc(l1+l2+1); | |
137 | if (!file->name) out_of_memory("receive_file_entry"); | |
138 | ||
139 | strncpy(file->name,lastdir,l2); | |
140 | read_buf(f,file->name+l2,l1); | |
141 | file->name[l1+l2] = 0; | |
142 | ||
143 | file->modtime = (time_t)read_int(f); | |
144 | file->length = (off_t)read_int(f); | |
145 | file->mode = (flags & SAME_MODE) ? last_mode : (mode_t)read_int(f); | |
146 | if (preserve_uid) | |
147 | file->uid = (flags & SAME_UID) ? last_uid : (uid_t)read_int(f); | |
148 | if (preserve_gid) | |
149 | file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f); | |
150 | if (preserve_devices && IS_DEVICE(file->mode)) | |
151 | file->dev = (flags & SAME_DEV) ? last_dev : (dev_t)read_int(f); | |
152 | ||
153 | #if SUPPORT_LINKS | |
154 | if (preserve_links && S_ISLNK(file->mode)) { | |
155 | int l = read_int(f); | |
156 | file->link = (char *)malloc(l+1); | |
157 | if (!file->link) out_of_memory("receive_file_entry"); | |
158 | read_buf(f,file->link,l); | |
159 | file->link[l] = 0; | |
160 | } | |
161 | #endif | |
162 | ||
163 | if (always_checksum) | |
43a481dc | 164 | read_buf(f,file->sum,csum_length); |
4fe159a8 AT |
165 | |
166 | last_mode = file->mode; | |
167 | last_dev = file->dev; | |
168 | last_uid = file->uid; | |
169 | last_gid = file->gid; | |
170 | p = strrchr(file->name,'/'); | |
171 | if (p) { | |
172 | int l = (int)(p - file->name) + 1; | |
173 | strncpy(lastdir,file->name,l); | |
174 | lastdir[l] = 0; | |
175 | } else { | |
176 | strcpy(lastdir,""); | |
177 | } | |
178 | } | |
179 | ||
180 | ||
181 | ||
182 | ||
183 | void setup_protocol(void) | |
184 | { | |
185 | if (remote_version == 10) { | |
186 | send_file_entry = send_file_entry_v10; | |
187 | receive_file_entry = receive_file_entry_v10; | |
188 | } else { | |
189 | send_file_entry = send_file_entry_v11; | |
190 | receive_file_entry = receive_file_entry_v11; | |
191 | } | |
192 | } | |
193 |